static int post_enter_graphics (void)
{
vga_setmousesupport (1);
mouse_init("/dev/mouse", vga_getmousetype (), 10);
if (keyboard_init() != 0) {
leave_graphics_mode ();
write_log ("Are you sure you have a keyboard??\n");
return 0;
}
keyboard_seteventhandler (my_kbd_handlerx);
keyboard_translatekeys (DONT_CATCH_CTRLC);
mouse_setxrange (-1000, 1000);
mouse_setyrange (-1000, 1000);
mouse_setposition (0, 0);
return 1;
}
void main(void)
{
struct timeval timeout;
fd_set inputs;
char bitmap[16 * 16 * 4]; /* big enough for 10x10 bitmap in any mode */
int vgamode, color, pipefd[2], x, y, button, event, cursorsize = 5;
char loop = 1, drawcursor = 1;
#ifdef USE_RAWKEYBOARD
char space_pressed = 0;
#endif
puts("This is a demo showing the abilities of the new vga_waitevent() function\n"
"If something goes wrong it might hang your machine. Thus hit <ctrl>-C now\n"
"to bailout if in doubt.\n"
"Use mouse to move cursor. 1-9,0 to set the cursor size. Space to change the\n"
"cursor color. Left button to draw. Right button or 'Q' to bailout.\n"
"The cursor goes on/off every half second by usage of a timeout passed to\n"
"vga_waitevent. Every 5 secs a string from a child process (the time) arrives\n"
"asynchronously and is displayed by the frontend.");
#ifdef USE_RAWKEYBOARD
puts("\nBEWARE! This has been compiled to use the raw keyboard. A crash might\n"
"render the console unusable. (but shouldn't).");
#endif
fputs("\nHit <Enter> if brave enough, else ^C to bailout: ", stdout);
fflush(stdout);
getchar();
fflush(stdin); /* clear I/O buffer */
pipe(pipefd);
if (fork() == 0) { /* fork off b4 touching graphix to avoid side effects */
close(pipefd[0]); /* Important: close reading side, else it remains */
/* opened by child when parent exits and we don't get */
/* a SIGPIPE! */
child(pipefd[1]);
}
vga_init();
vgamode = vga_getdefaultmode();
if (vgamode == -1)
vgamode = G320x200x256;
if (!vga_hasmode(vgamode)) {
printf("Mode not available.\n");
exit(-1);
}
/* Enable automatic mouse setup at mode set. */
vga_setmousesupport(1);
vga_setmode(vgamode);
/* Disable wrapping (default). */
/* mouse_setwrap(MOUSE_NOWRAP); */
gl_setcontextvga(vgamode);
gl_enableclipping();
/* There might be some scrap data in the serial buffer
from the mouse. It will make vga_waitevent block
because it thinks the mouse wants to send data but
then no mouse packet arrives. */
color = newcolor();
x = 0;
y = 0;
gl_setwritemode(WRITEMODE_OVERWRITE | FONT_COMPRESSED);
gl_setfont(8, 8, gl_font8x8);
gl_setfontcolors(0, newcolor());
#ifdef USE_RAWKEYBOARD
if (keyboard_init()) {
printf("Could not initialize keyboard.\n");
exit(1);
}
#endif
while (loop) {
gl_getbox(x, y, 10, 10, bitmap);
if (drawcursor) {
gl_hline(x, y, x + cursorsize, color);
gl_hline(x, y + cursorsize, x + cursorsize, color);
gl_line(x, y, x, y + cursorsize, color);
gl_line(x + cursorsize, y, x + cursorsize, y + cursorsize, color);
}
FD_ZERO(&inputs);
FD_SET(pipefd[0], &inputs);
timeout.tv_sec = 0;
timeout.tv_usec = 500000; /* 0.5 second time out */
event = vga_waitevent(VGA_MOUSEEVENT | VGA_KEYEVENT,
&inputs, NULL, NULL, &timeout);
gl_putbox(x, y, 10, 10, bitmap);
if (timeout.tv_sec || timeout.tv_usec) {
/* No timeout. An actual event occured. Reset to visible
cursor. Note:
This is actually a bug as the cursor will get visible on time
updates. However, it's better this way for demo/test
purposes. */
drawcursor = 1;
} else {
drawcursor ^= 1;
}
if (FD_ISSET(pipefd[0], &inputs))
process_input(pipefd[0]);
if (event & VGA_MOUSEEVENT) {
x = mouse_getx();
y = mouse_gety();
button = mouse_getbutton();
if (button & MOUSE_LEFTBUTTON)
gl_fillbox(x, y, cursorsize + 1, cursorsize + 1, color);
if (button & MOUSE_RIGHTBUTTON)
loop = 0;
}
if (event & VGA_KEYEVENT) {
#ifdef USE_RAWKEYBOARD
if (keyboard_keypressed(SCANCODE_1))
cursorsize = 0;
if (keyboard_keypressed(SCANCODE_2))
cursorsize = 1;
if (keyboard_keypressed(SCANCODE_3))
cursorsize = 2;
if (keyboard_keypressed(SCANCODE_4))
cursorsize = 3;
if (keyboard_keypressed(SCANCODE_5))
cursorsize = 4;
if (keyboard_keypressed(SCANCODE_6))
cursorsize = 5;
if (keyboard_keypressed(SCANCODE_7))
cursorsize = 6;
if (keyboard_keypressed(SCANCODE_8))
cursorsize = 7;
if (keyboard_keypressed(SCANCODE_9))
cursorsize = 8;
if (keyboard_keypressed(SCANCODE_0))
cursorsize = 9;
if (keyboard_keypressed(SCANCODE_Q))
loop = 0;
if (keyboard_keypressed(SCANCODE_SPACE)) {
if (!space_pressed) {
color = newcolor();
space_pressed = 1;
}
} else {
space_pressed = 0;
}
#else
switch (vga_getch()) {
case '1':
cursorsize = 0;
break;
case '2':
cursorsize = 1;
break;
case '3':
cursorsize = 2;
break;
case '4':
cursorsize = 3;
break;
case '5':
cursorsize = 4;
break;
case '6':
cursorsize = 5;
break;
case '7':
cursorsize = 6;
break;
case '8':
cursorsize = 7;
break;
case '9':
cursorsize = 8;
break;
case '0':
cursorsize = 9;
break;
case ' ':
color = newcolor();
break;
case 'q':
case 'Q':
loop = 0;
break;
default:
ping();
break;
}
#endif
}
}
#ifdef USE_RAWKEYBOARD
keyboard_close(); /* Don't forget this! */
#endif
vga_setmode(TEXT);
exit(0);
}
int SVGA_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
int keyboard;
int i, j;
int mode, total_modes;
/* Initialize all variables that we clean on shutdown */
for ( i=0; i<NUM_MODELISTS; ++i ) {
SDL_nummodes[i] = 0;
SDL_modelist[i] = NULL;
SDL_vgamode[i] = NULL;
}
/* Initialize the library */
vga_disabledriverreport();
if ( vga_init() < 0 ) {
SDL_SetError("Unable to initialize SVGAlib");
return(-1);
}
vga_setmode(TEXT);
/* Enable mouse and keyboard support */
vga_setmousesupport(1);
keyboard = keyboard_init_return_fd();
if ( keyboard < 0 ) {
SDL_SetError("Unable to initialize keyboard");
return(-1);
}
if ( SVGA_initkeymaps(keyboard) < 0 ) {
return(-1);
}
keyboard_seteventhandler(SVGA_keyboardcallback);
/* Determine the screen depth (use default 8-bit depth) */
vformat->BitsPerPixel = 8;
/* Enumerate the available fullscreen modes */
total_modes = 0;
for ( mode=vga_lastmodenumber(); mode; --mode ) {
if ( vga_hasmode(mode) ) {
if ( SVGA_AddMode(this, mode, 0, 0) ) {
++total_modes;
}
}
}
if ( SVGA_AddMode(this, G320x200x256, 0, 1) ) ++total_modes;
if ( total_modes == 0 ) {
SDL_SetError("No linear video modes available");
return(-1);
}
for ( i=0; i<NUM_MODELISTS; ++i ) {
SDL_vgamode[i] = (int *)malloc(SDL_nummodes[i]*sizeof(int));
if ( SDL_vgamode[i] == NULL ) {
SDL_OutOfMemory();
return(-1);
}
SDL_modelist[i] = (SDL_Rect **)
malloc((SDL_nummodes[i]+1)*sizeof(SDL_Rect *));
if ( SDL_modelist[i] == NULL ) {
SDL_OutOfMemory();
return(-1);
}
for ( j=0; j<SDL_nummodes[i]; ++j ) {
SDL_modelist[i][j]=(SDL_Rect *)malloc(sizeof(SDL_Rect));
if ( SDL_modelist[i][j] == NULL ) {
SDL_OutOfMemory();
return(-1);
}
memset(SDL_modelist[i][j], 0, sizeof(SDL_Rect));
}
SDL_modelist[i][j] = NULL;
}
for ( mode=vga_lastmodenumber(); mode; --mode ) {
if ( vga_hasmode(mode) ) {
SVGA_AddMode(this, mode, 1, 0);
}
}
SVGA_AddMode(this, G320x200x256, 1, 1);
/* Free extra (duplicated) modes */
for ( i=0; i<NUM_MODELISTS; ++i ) {
j = 0;
while ( SDL_modelist[i][j] && SDL_modelist[i][j]->w ) {
j++;
}
while ( SDL_modelist[i][j] ) {
free(SDL_modelist[i][j]);
SDL_modelist[i][j] = NULL;
j++;
}
}
/* Fill in our hardware acceleration capabilities */
SVGA_UpdateVideoInfo(this);
/* We're done! */
return(0);
}
